A user-centric vision of service-oriented Pervasive Information Systems

Abstract

Abstract-Information Systems (IS) have massively adopted service orientation by exposing their functionalities as services. With the evolution of mobile technologies (smartphones, 3G/4G networks, etc.), such systems are now confronted with a new pervasive environment for which they were not originally designed. Indeed, pervasive environments are characterized by their heterogeneity and dynamicity due to their evolving context and their need for transparency. None of these features are particularly considered in traditional IS designed for stable and controlled office environments. In our new vision for serviceoriented Pervasive Information Systems (PIS), the user becomes the center of these systems. This paper presents a user-centric service-oriented vision for PIS based on a context-aware intentional approach, which considers the user intention and the context in which this intention arises as a guiding principle for service description, discovery, prediction and recommendation.

Service discovery and prediction on Pervasive Information System

“…In order to make this ubiquitous access possible, Pervasive Information Systems (PIS) have to conciliate two different worlds: the dynamic and heterogeneous pervasive environments with the predictable and expected behavior necessary to an Information System. From this analysis, a set of requirements applying to PIS can be delineated, including heterogeneity (being able to handle heterogeneity of devices and services), predictability (being able to satisfy user's goals in a predictable and expected manner) and context awareness (Najar et al 2014). Context-awareness can be seen as the capability pervasive artifacts have to collect, to process, and to manage environmental or user-related information on a real-time basis (Kourouthanassis and Giaglis 2006).…”

“…In contrast to desktop computing, where user's action precedes system response, PIS promote system pro-action based on environmental stimuli (Kourouthanassis and Giaglis 2006). Thus, PIS should be able to observe changes in the execution environment and to adapt consequently their behavior (Najar et al 2014).…”

“…This vision, illustrated by Fig. 1 and detailed on Najar et al (2014), consider that a service is proposed in order to satisfy a given intention I under a given context CxR. This later represents the context in which the service is supposed to be invoked in order to work properly.…”